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Bazel / Golang / Hexagonal Architecture

A little bit over-engineered urlshortener service to demonstrate Hexagonal Architecture usage with Bazel.

Build

You need to install bazelisk

$ brew install bazelisk
or
$ nix-shell -p bazelisk

Compile the world

$ make bazel-build

Run

Start the datastore

bazelisk run //cmd/urlshortener-datastore

Start the API in a different console

bazelisk run //cmd/urlshortener-api

Start the GraphQL API in a different console

bazelisk run //cmd/urlshortener-graphql

Tests

Public links

Create a shortened URL.

$ curl -d '{"url":"https://blog.zenithar.org"}' http://localhost:3000/api/v1/links
{"link":{"id":"TwkS2HS7s","url":"https://blog.zenithar.org"}}
$ curl http://localhost:3000/api/v1/links/TwkS2HS7s
{"link":{"id":"TwkS2HS7s","url":"https://blog.zenithar.org"}}

Secret links

Create a secret shortened URL.

$ curl -d '{"url":"https://blog.zenithar.org","secret":"my-very-secret-password"}' http://localhost:3000/api/v1/links
{"link":{"id":"pjuesJ9YX","url":"https://blog.zenithar.org","secret_required":true}}

Resolve the secret shortened URL (POST)

$ curl -d '{"secret":"my-very-secret-password"}' http://localhost:3000/api/v1/links/pjuesJ9YX
{"link":{"id":"pjuesJ9YX","url":"https://blog.zenithar.org"}}

If you try to access the secret shortened url with an invalid secret (POST)

$ curl -d '{"secret":"my-secret"}' http://localhost:3000/api/v1/links/pjuesJ9YX
{"error_message":"This shortened url requires a valid secret to be revealed.","error_code":403}

If you try to access the secret shortened url without the secret (GET)

$ curl http://localhost:3000/api/v1/links/pjuesJ9YX
{"error_message":"This shortened url requires a secret to be revealed.","error_code":406}

This should return a 404 to prevent the information leak about the fact that the given shortened ID exists. But be aware that it could also be identified using time based analysis.